Procedure

• Click this link to run a simulation of collisions between two bodies:

https://phet.colorado.edu/sims/html/collision-lab/latest/collision-lab_en.html

• Click Intro and then check More Data. You must analyze the following three cases:

1. Perfectly elastic collision (slide elasticity pointer to 100%)
2. Inelastic collision (slide elasticity pointer to 50%)
3. Perfectly inelastic collision (slide elasticity pointer to 0%)

• For each case, enter the values of mass and initial velocity for each body as indicated in the data tables. Use the default values for other quantities.

• Run the simulation and record the final velocities for each body in the data table for each case. Calculate momentum and kinetic energy before and after collision.

Lab 6: Collisions - Conservation of Energy and Linear Momentum Purpose to verify the laws of conservation of momentum and energy in simple collisions in one dimension. Background In this lab, we will be dealing with collisions between two bodies. The law of conservation of momentum can be written as: Total momentum before collision = Total momentum after collision (total mv) before = (total mv)... mivlit m2 V 21 = mi vis + m2V 2f If mechanical energy is conserved, kinetic energy before and after the collision can be written as: (total KE)before = (total KE).net Procedure Click this link to run a simulation of collisions between two bodies: https://phet.colorado.edu/sims/html/collision-lab/latest/collision-lab_en.html Click Intro and then check More Data. You must analyze the following three cases: A. Perfectly elastic collision (slide elasticity pointer to 100%) B. Inelastic collision (slide elasticity pointer to 50%) C. Perfectly inelastic collision (slide elasticity pointer to 0%) For each case, enter the values of mass and initial velocity for each body as indicated in the data tables. Use the default values for other quantities. Run the simulation and record the final velocities for each body in the data table for each case. Calculate momentum and kinetic energy before and after collision.Data & Analysis Table A: Perfectly Elastic Collision - colliding bodies rebound without lasting deformation or the generation of heat Before Collision After Collision mi = 1 kg V1 1 = +1 m/s VIf= mivif 5myvis 1 m2 = 0.5 kg V2; = -1 m/s m2 21= Total momentum before collision = Total momentum after collision = Total kinetic energy before collision = Total kinetic energy after collision = Table B: Inelastic Collision - colliding bodies become distorted and generate heat Before Collision After Collision mi = 1 kg V1i = +1 m/s miVII mivit mivif 2mivif m2 = 0.5 kg V2; - -1 m/s m2 21- V26 = m2 25- 21 Total momentum before collision = Total momentum after collision = Total kinetic energy before collision = Total kinetic energy after collision = Table C: Perfectly Inelastic Collision - colliding bodies become distorted, generate heat, and stick together Before Collision After Collision mi = 1 kg V12 = +1 m/s miVIL mivif 5mivis m2 = 0.5 kg V2; =-1 m/s mov21- V26 m2 2f 1 Total momentum before collision = Total momentum after collision = Total kinetic energy before collision = Total kinetic energy after collision = Results Table D: Conclusions Case A Case B Case C Is momentum conserved? Is kinetic energy conserved